Answer: 4/15
Step-by-step explanation:
Make the denominators equal first including the numerators. So, the common factor is 15. So 2/3 turns into 10/15 and 2/5 turns into 6/15. Now subtract. 10/15-6/15 is 4/15
Answer:
50
Step-by-step explanation:
9. There are 4 odd numbers and 4 even numbers
P(odd number) = odd numbers/ total
= 4/ (4+4)
=4/8
= 1/2
If we spin 100 times, we multiply the number of times we spin * the probability
100 * 1/2 = 50
Okay well the way I do it is like this. When ever the next hour hits 10 minutes that is one hour then add the minutes left. So from 7:10a.m. to 6:10p.m. is 11 hours. Now the rest of the minutes. 6:35 -6:10=:25. So she has been away from the house for 11 hours and 25 minutes
Answer:
14.3 feet
Step-by-step explanation:
Let the height of the tree = x feet.
It is given that the horizontal distance from the base of tree = 10 feet and the angle of elevation to the nest is 55°.
So, we get the following figure.
As, we are obtaining a right angled triangle.
Using the trigonometric form for the angles of a right angled triangle, we get,
i.e. 
i.e. 
i.e. 
i.e. 
Hence, the height of the tree is 14.3 feet.
15 in squared
Area of the square = 4 x 3 = 12
Area of 1 triangle = 3 x 1 = 3/2 = 1.5
Add it all up, square plus 2 triangles =
12 + 1.5 + 1.5 = 15
